Detecting Unused nodes in maya (Python)

[Mahmoodreza Aarabi]

Hey guys

I want to know how can we get a complete list of all unused nodes in maya, nodes that are detect with Optimize Menu, and after detecting it will remove them.
Now i want to get all unused nodes before deleting them.

there is any idea?

this command will delete unused node in maya
hyperShadePanelMenuCommand("hyperShadePanel1", "deleteUnusedNodes");

thanks in advance.

​

[Justin Israel]

If you do some detective work you can find the way that command works:

// mel

whatIs hyperShadePanelMenuCommand

// path to a mel script

If you look through that mel script for the usage of "deleteUnusedNodes", it will bring you to a command like:

MLdeleteUnused

// mel

whatIs MLdeleteUnused

// path to another mel script

If you read that script, you will see that the process of finding unused nodes is multiple stages. It looks at shading groups, and connections, and texture nodes, .. 

Justin

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[Mahmoodreza Aarabi]

Thank you Justin

I will explore this.

It takes time but this is a good way to find all commands in lowest level.

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Bests,

madoodia